diff --git a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/problemKnowledgeBase/service/impl/ProblemKnowledgeBaseEOServiceImpl.java b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/problemKnowledgeBase/service/impl/ProblemKnowledgeBaseEOServiceImpl.java
index 2492789ec..d1d3f636a 100644
--- a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/problemKnowledgeBase/service/impl/ProblemKnowledgeBaseEOServiceImpl.java
+++ b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/problemKnowledgeBase/service/impl/ProblemKnowledgeBaseEOServiceImpl.java
@@ -41,6 +41,7 @@ import com.jero.modules.system.service.ISysDictService;
 import com.jero.modules.system.service.ISysUserService;
 import com.jero.modules.system.util.StringUtils;
 import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.lang3.ObjectUtils;
 import org.apache.shiro.SecurityUtils;
 import org.jetbrains.annotations.NotNull;
 import org.jsoup.Jsoup;
@@ -511,7 +512,9 @@ public class ProblemKnowledgeBaseEOServiceImpl extends ServiceImpl<ProblemKnowle
     public ProblemKnowledgeBaseEO queryById(String id,String cut) {
 		ProblemKnowledgeBaseEO problemKnowledgeBaseEO = getById(id);
 		List<ProblemKnowledgeBaseEO> problemKnowledgeBaseEOList = new ArrayList<>();
-		problemKnowledgeBaseEOList.add(problemKnowledgeBaseEO);
+		if (ObjectUtils.isNotEmpty(problemKnowledgeBaseEO)) {
+			problemKnowledgeBaseEOList.add(problemKnowledgeBaseEO);
+		}
 		this.disposeData(problemKnowledgeBaseEOList,cut);
 		if (CollectionUtils.isNotEmpty(problemKnowledgeBaseEOList)) {
 			problemKnowledgeBaseEO = problemKnowledgeBaseEOList.get(0);